Mechanism for the manufacture of buffer-wheels, &amp;c.



No. 677,257. 7 Patented June 25, l90l. J. J. MGDUNNELL.

MECHANISM FOR THE MANUFACTURE OF BUFFER WHEELS, 8w.

(Application filed Jan. 16, 1900.) (No Model.) 2 Sheets-Sheet l.

"I "I 'I W ltnesses- "unlll lm, 'llil 'm """M.

Inventor.

No. 677,257. Patnted June 25, I90I. .1. J. McDONNELL.

MECHANISM FOR THE MANUFACTURE OF BUFFER WHEELS, 810.

(Application filed Jan. 16, 1900.) (No Model.) 2 Sheets-Shet 2.

Inventor.

. ZAttorney.

UNITED STATES PATENT O FICE.

JAMES J. MCDONNELL, OF NEW YORK, N. Y., ASSIGNOR TO DANIEL C. OLIVER, OFSAME PLACE.

MECHANISM FOR THE MANUFACTURE OF BUFFER-WHEELS, 84.6.

SPECIFICATIGN forming part Of Letters Patent N0. 677,257, dated June 25,1901. Application filed .Tanhary 16, 1900. Serial No. 1,611. (No model.)

To all whom it may concern:

Be it known that 1, JAMES J. MoDoNNELL, a citizen of the United States,residing in the city of New York, county and State of New York, haveinvented a certain new and useful Improvement in Mechanism for theManufacture of Buffer-,Wheels and Like Articles, of which the followingis a specification.

My invention relates to devices for the sewin g together of layers orthicknesses of cloth or other material for the purpose of forming thesame into a wheel to be used for polishing or for other purposes; but itmay be used in any case where it is desired to unite together two ormore thicknesses of material. Its object is, among others, to providemeans whereby the thicknesses may be firmly held together whilebeingperforated and sewed; and to this end it consists of thecombination of parts and arrangement of details hereinafter describedand claimed, andillustrated in the accompanying drawings.

In the accompanying drawings, Figure 1 is a perspective view of mydevice. Fig. 2 is a side view of the vise with the bufier-wheel andclamping-plates therein. Fig 3 is a front view of the vise. Figs. 4and 5are plan views of the clamping-plates taken from the outer sidesthereof.

The two circular disks or clamping-plates A are provided with elongatedperforations or slots a having enlarged ends a arranged in concentricrings, and each disk has a lug a, provided with a notch a for thepurpose of securing alinement when the two disks are placed together.The perforations a are so arranged that when the two disks are placedtogether their enlarged ends will be in alinement and the space betweenthe ends of the slots at one plate opposite the slots of the other disk.Each disk is provided with a round perforation d at the middle. Disk Ahas another round perforation a and a radial row of double-length slotswith enlargements.

at the middle a", while disk A has a doublelength slot a with anenlarged portion at the middle adapted to be placed opposite theperforation a of the disk A, from which enlarged middle proceeds aradial slot a having enlargements at each ring of perforations.

The viseD is preferably of U shape and is provided at the end of one ofits jaws with the screw-bolt 0, having a head 0 and crosspin 0 and aconical point c,witha holein the point thereof, which is adapted toreceive the end of apin A (shown in the dotted lines on Fig. 2,) whichpasses through the center of the disks and the layers of cloth betweenthem. The end of the opposite jaw D is stepped and has a slot d, leadingto a circular opening 01, which is adapted to receive the stepped lug Aat the center of the disk A. The disk A has a lug A at the centerprovided with a cup-shaped opening to receive the end 0 of the bolt 0.One of the arms of the vise has a longitudinal extension D and adaptedto be set in the slot F of the plate F. There is also a stepped pin D atthe back end of the vise, which is adapted to be set in the socket F ofthe plate F.

The punch E is of an ordinary construction, consisting of an uprightsecured to the plate or table, having a cross-arm E, provided with acounterbalance at one end and a handle at the other. The awl is fixedinto the lower end of the rod E which is connected to the arm betweenthe handle and its point of connection to the upright.

The operation of this device is as follows: The clamping disks or platesA A are placed upon opposite sides of the cloth or other ma terial to besewed together. The notches 0.2 of the lugs a being in line and theenlarged circular ends of the slots being opposite each other, the disksare then placed in the vise, with the stepped lug on one of them setinto the opening at. The bolt 0 is then rotated until its end 0,pressing against the lug A has produced sufficient pressure to clamp theplates and layers of material firmly together. The vise is then placedon a table by setting the part D into the slot F The operation ofperforating the layers of material is then performed by causing the awlof the punch to pass through the enlarged circular portions of the slotsand through the material between the same. After one circular row ofperforations has been made the vise carrying the disks is moved backwardorforward for the purpose of punching another row, the disks beingrotated in the vise for the purpose of perforating each rin After theperforation in the opposite end of the slot of the other'disk backagain. This is repeated around the outer ring of perforations, and thethread is then passed to the next ring of perforations along the slot aand so on until all the rings have been sewed.

The lugs a of the disks projecting out from v the periphery enable theoperator to secure a perfect alinement over the edge of the materialbetween the disks, which may project toa 1 greater or less extent beyondthem.

What I claim is V 1. In a mechanism for manufacturing buffwheels and thelikethe combination ofdisks provided with slots-adapted to be placedpartially opposite upon either side of the material and means forperforating said material so that a wire cord or thread may be passedthrough the said material from a slot on one side to the other side,then along a slot upon the other side, and then through the-materialagain to another slot on the first side, for the purpose of sewing thematerial together,

through the saidslots of the disks.

2. In a mechanism for manufacturing bu Efwheels and the like,the'combination of disks provided with slots, having enlarged ends,adapted to be placed partial-1y opposite upon either side of thematerial and means for perforating said material through'the said slotsofthe disks.

3. In a mechanism for manufacturing bufiwheelsand the like, thecombination of disks provided with slots adapted to be'placed partiallyopposite upon either side of the material to be sewed, and means 'forperforating the said material through the said slots and projectionsupon the center and outer side of said disks adapted to receive the jawsof a vise, whereby the said disks and the material between the same, arerotatably held together.

4. In a mechanism for manufacturing buifwheels and the like, thecombination of disks provided with slots, and trunnions on their outersides, said disks adapted to be placed upon either side of the materialto be sewed, and a vise with jaws adapted to fit thesaid trunnions and aprojection upon one side of said vise, adapted to fit into a slot,whereby the said vise is movably held in a horizontal position.

5. In a mechanism for manufacturing buffwheels and the like, thecombination of disks provided with slots, and trunnions on their outersides, said disks adapted to be placed 7 upon either side of thematerial to bese'wed, and a vise withjaws adapted to fit th'esaidtrunnions and aprojection upon one side of said vise adapted to-fit intoa-sl-ot, whereby the said vise is movably held in a horizontal positionand'another projection upon saidvise adapted tofitinto a hole or-socket,whereby the, said vise is rotatably held in an up:

right position. v 6. In a mechanism-for manufacturing bufiwheels and thelike, plates adapted to be placed on eitherside of thematerial of whichthe buff is to be made, said plates beingprovided with annular slots andwith radialslots connecting the said annular slots.

7. ,Inamechanismfor manufacturing b'uffwheelsand the like, thecombinatio'nof plates adapted to be placed upon either side of thematerial and slots on said-plates so arranged that when the saidplates-are in position, each slot on one side is partially opposite aprurality of slots onthe oppositeside.

Signed at thecity of New York this 30th day of December, 1599.

. JAMES J. MGDONNELL. Witnesses:

DANIEL C. OLIVER,

M. K. WHITMAN.

